Logic Grid Solver

Info

This is a solver for solving logic grids in Islands of insight automatically in the browser!

Controls:

"Cell" mode - left click to place dark cell, right click to place light cell, middle click to clear cell.
"Border" mode - left click to place border cell, right click to clear cell.
"Symbol" mode - left click to place a symbol, right click to remove symbol.

Only a subset of the game's mechanics are currently implemented. More will be implemented in the future.

Implemented rules: Connected, Area

Implemented symbols: Area, Dart, Viewpoint, Galaxy, Lotus

What is this?

This is a project to solve logic grids in Islands of Insight automatically by a computer. I created this project just for fun, and also to practice coding solvers (and see how far I can go). Obviously it is way more fun to solve logic grids yourself, but pushing the limits of solving puzzles automatically is also pretty fun.

How does this solve logic grids?

This solver uses a technique called backtracking. Essentially, the solver recursively guesses cells, and backtrack if the guesses are wrong. The process continues until a solution have been found. Some heuristics (e.g. Most Constrained Variable) are also implemented on certain rules & symbols to speed up the process.

Why is this website so ugly?

I did not try to make this website looks good.